公开(公告)号：KR101477077B1

公开(公告)日：2014-12-29

申请号：KR1020140055408

申请日：2014-05-09

Applicant: 국방과학연구소

Inventor： 정태신 ,  백민석 ,  이병호 ,  방정석 ,  박형근

IPC: B23K1/00 ,  B23K1/19 ,  B23K35/363

Abstract: The present invention relates to a method for brazing heterogeneous molybdenum and titanium alloys. The present invention includes (a) a first heating step in which an Ag-Cu-based filler metal is arranged at a bonding portion of the molybdenum and titanium alloys, heating is performed up to 25°C to 100°C under the melting point of the Ag-Cu-based filler metal, and the state is maintained for a predetermined period of time; (b) a secondary heating step in which heating is performed up to 25°C to 100°C over the melting point of the Ag-Cu-based filler metal in the first heating step and the state is maintained for a predetermined period of time; and (c) a cooling step in which the Ag-Cu-based filler metal is cooled. According to the present invention, the melting point is much lower than the phase transformation temperature of Ti and Ti wettability is excellent, and thus no phase transformation is caused in the Ti alloy and sound brazing bonding is possible.

Abstract translation: 本发明涉及一种钎焊异种钼和钛合金的方法。 本发明包括（a）第一加热步骤，其中在钼和钛合金的接合部分处布置Ag-Cu基填料，在熔点下加热至25℃至100℃ 的Ag-Cu基填充金属，并且将状态保持预定时间段; （b）第二加热步骤，其中在第一加热步骤中，在Ag-Cu基填充金属的熔点下进行至多25℃至100℃的加热，并且将状态保持预定时间段 ; 和（c）冷却Ag-Cu系填充金属的冷却工序。 根据本发明，熔点比Ti的相变温度低得多，Ti的润湿性优异，因此在Ti合金中不会发生相变，可以进行声焊接。